L78 vs COPO in 69 ('real' engine horsepower ratings)

08-01-2023, 12:39 AM

JMB

Member

Join Date: Jan 2022

Location: Laveen, AZ

Posts: 88

Thanks: 37

Thanked 98 Times in 29 Posts

Remember, HUGE flow difference between streamlined Corvette exhaust manifolds and Chevelle/Camino ones!

__________________
Currently owned:
1970 El Camino SS 454/M22 LS-5
1988 Monte Carlo SS LS7/T56 (700+ NA RWHP!)
2011 Corvette Z06 all stock
Previous owner of:
1970 Chevelle SS 454/M22 w/XCH crate LS-7
1970 El Camino SS 454/M22 LS-6
1970 Camaro Z-28/M22

The Following 2 Users Say Thank You to JMB For This Useful Post:
black69 (08-01-2023), Xplantdad (08-01-2023)

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